I have used the same red top battery for the past 6 years. I just got one of the $29.95 battery tenders at NAPA and put on it when I am not using the car for a period of time and have never had a problem. That worked so wellthat i got another and put on my other cars battery which is just a regular battery and ithas now been in the car for over 4 years with no problems. I don'thave much chance to start them and run them during the Winter here because of the rain when we have a normal Winter.
Ron
